What is the name of this hydrocarbon?

How to convert a density of 0.791g/cm3 to lb/ft3

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Give the orbital configuration of the phosphorus (p) atom.